Empidonax oberholseri

Order

Family

Code 4

Code 6

ITIS

ILLUSTRATION

PHOTOS

CONSERVATION STATUS

The Dusky Flycatcher has a large range, estimated globally at 2,700,000 square kilometers. It is native to the nations of North America and Guatemala and prefers temperate, tropical, or subtropical forest and shrubland ecosystems,. The global population of this bird is 3,600,000 individuals and it does not appear to meet population size or decline criteria that would necessitate inclusion on the IUCN Red List. The current evaluation status of the Dusky Flycatcher is Least Concern.

SUMMARY

Overview

Dusky Flycatcher: Small flycatcher with olive-gray upperparts and white or yellow tinged underparts. The upper breast has a pale olive wash. Eye has faint eye-ring. Bill is black except for orange base of lower mandible. The legs and feet are black. Weak fluttering flight with shallow wing beats.

Range and Habitat

Dusky Flycatcher: Breeds from British Columbia and western South Dakota south to southern California, central Arizona, and northern New Mexico. Spends winters south of the U.S.-Mexico border, and in southern Arizona and Texas. Preferred habitats include woodlands containing tall trees and tall undergrowth, mountain chaparral, and open, brushy coniferous forests.

Dusky Flycatcher SONGS AND CALLS

Dusky Flycatcher A1

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Song is a mix of "prr-it", "prrdrrrt", and "pseet" notes.

Dusky Flycatcher A2

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"Whit" location calls and "dee-hick" calls.

Similar Sounding

Gray Flycatcher A2

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Song is a repeated "chuwip" or "chibit".

Hammond's Flycatcher A3

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Song is a dry "sweep-tseep-seep".

Voice Text

"dee-hick", "sill-it, "grrreeep", "pweet", "whit"

INTERESTING FACTS

The scientific name of the Dusky Flycatcher commemorates the American ornithologist Harry Church Oberholser.

A group of flycatchers has many collective nouns, including an "outfield", "swatting", "zapper", and "zipper" of flycatchers.

RANGE MAP NORTH AMERICA

About this North America Map

FAMILY DESCRIPTION

The PASSERIFORMES (pronounced pas-ser-i-FOR-meez), a large taxonomic order that includes antbirds, cotingas, and flycatchers, is composed of one hundred eighteen families of birds.

FAMILY TAXONOMY

The Tyrannidae (pronounced tie-RAN-uh-dee), or tyrant flycatchers, is a very large, successful family of four hundred and twenty-four species in one hundred genera only found in the Americas.

NORTH AMERICA

In North America, one hundred forty-seven species of tyrant flycatchers in fifty-eight genera have occurred. These include the brilliant Vermillion Flycatcher, the sassy kingbirds, and the bridge-loving phoebes.

KNOWN FOR

Some tyrant flycatchers are known for their bold, aggressive behavior, this family often called the Tyrant Flycatchers for this reason. The Eastern Kingbird in particular, seems to go out of its way to chase much larger birds (such as Turkey Vultures) away from its territory.

PHYSICAL

Small to medium in size, tyrant flycatchers have stocky heads with medium sized beaks, tails that vary in length, and long wings. They also have short legs suited to their arboreal lifestyles.

COLORATION

Aside from the brilliant red and black plumage of the male Vermillion Flycatcher, most tyrant flycatchers are plumaged in dull grays, greens, and browns with whitish or yellowish underparts. A few other exceptions to this color scheme are the frosty plumage of the Scissor-tailed Flycatcher highlighted by salmon pink underwings, the orangish coloration of the Say’s Phoebe, and the black and white plumages of the Eastern Kingbird and Black Phoebe.

GEOGRAPHIC HABITAT

Members of the Tyrannidae occur in most types of forested and non-forest habitats in North America except for the tundra. Some species such as the Willow Flycatcher and Black Phoebe are associated with wetland habitats, others like the Olive-sided and Hammond’s Flycatchers need coniferous forests, and other species such as the Cassin’s Kingbird and Say’s Phoebe, occur in grasslands. Related species often replace each other in different habitats or regions such as in the case of the Eastern and Western Wood-Peewees.

MIGRATION

Most tyrant flycatchers are long distance migrants to Central and South America.

HABITS

Tyrant flycatchers do not nest in colonies and mostly forage in pairs or alone although the Eastern Kingbird forms flocks during migration and on its wintering grounds in Amazonia. Most North American flycatchers share a similar foraging strategy that often varies by niche and prey item. This foraging strategy involves watching for insects from a perch, sallying out to catch one with a snap of the beak, and returning to the perch to eat it.

CONSERVATION

Most tyrant flycatcher species have stable populations in North America. The Olive-sided Flycatcher, though, has sharply declined throughout its range possibly due to habitat destruction on its wintering grounds and has been listed as near-threatened.

INTERESTING FACTS

The Alder and Willow Flycatchers are so similar in plumage that visual identification is nearly impossible. These two species were actually considered to be one species, the “Traill’s Flycatcher,” until small differences in their plumages and distinct differences in their vocalizations showed that they were separate species. This was also the case for the Cordilleran and Pacific-slope Flycatchers, and the Eastern and Western Wood-Peewees.